For full functionality, we recommend downloading the Original format.The viewer version is intended only for use in the web viewer. In the original file, the following are fully preserved:✔ native scene structure✔ all materials without simplification✔ accurate texture maps✔ correct object namesIf you are going to integrate the model into a project, select the original version.LP 20 ft Shipping Cargo Container with 4 individual drivers to move doors individualy. Made for use in Video Games but you can use it for basically anything.